【Author】
Hu, Hongbin; Wang, Yongbin
【Abstract】In recent years, the media industry has achieved rapid development and experienced three development stages from traditional media to new media and then to the current convergence media. Convergence media has brought about great changes in content production, communication mechanism, operation and maintenance management, but also brought about problems such as declining credibility of the industry, difficulty in confirming content rights, difficulty in protecting user privacy, etc. Research on convergence media based on blockchain can make use of the characteristics of blockchain to design or optimize the media industry. In this paper, we introduced the development of convergence media, blockchain and consensus mechanism, then we described a sustainable convergence media ecology based on blockchain. Furthermore, we designed and implemented a consensus mechanism named proof of efficiency (PoE). After analysis, PoE can provide high security and resist 51% resource attack, sybil attack, etc. The experimental results show that PoE has the characteristics of decentralization, strong consistency, low energy consumption, short average block generation time, high throughput and short block confirmation time; the consensus results of PoE can reflect the node's ecological characteristics in convergence media which can stimulate the activity of nodes and better solve the generation of the Matthew effect.
【Keywords】blockchain; consensus mechanism; convergence media; media ecology; half-life; PageRank
【摘要】近年来，媒体行业取得了快速发展，经历了从传统媒体到新媒体再到现在的融合媒体的三个发展阶段。融合媒体带来了内容生产、传播机制、运维管理等方面的巨大变化，但也带来了行业公信力下降、内容确权难、用户隐私难保护等问题。基于区块链可以利用区块链的特性来设计或优化媒体行业。在本文中，我们介绍了融合媒体、区块链和共识机制的发展，然后描述了一个基于区块链的可持续融合媒体生态。此外，我们设计并实施了一种名为效率证明（PoE）的共识机制。经过分析，PoE可以提供高安全性，可以抵抗51%资源攻击、sybil攻击等。实验结果表明，PoE具有去中心化、强一致性、低能耗、平均出块时间短、吞吐量高、出块时间短等特点。确认时间； PoE 的共识结果可以反映节点在融合媒体中的生态特征，可以激发节点的活跃度，更好地解决马太效应的产生。
【关键词】区块链；共识机制；融合媒体；媒体生态；半衰期;网页排名
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